| Identification | Back Directory | [Name]
2-AMINOTHIAZOLE-5-CARBOXYLIC ACID | [CAS]
40283-46-3 | [Synonyms]
RARECHEM AL BE 1263
2-Amino-5-carboxy-1,3-thiazole
2-Aminothizole-5-carboxylic acid
Heterocyclic coMpounds / Pyrazole
2-AMINO-5-THIAZOLECARBOXYLIC ACID
2-AMINOTHIAZOLE-5-CARBOXYLIC ACID
2-AMINOTHIAZOL-5-YLCARBOXYLIC ACID
5-Thiazolecarboxylic acid, 2-aMino-
2-Amino-1,3-thiazole-5-carboxylic acid
2-Aminothiazole-5-carboxylic acid, >=98%
2-Amino-1,3-thiazole-5-carboxylic acid 98% | [EINECS(EC#)]
609-810-4 | [Molecular Formula]
C4H4N2O2S | [MDL Number]
MFCD06203554 | [MOL File]
40283-46-3.mol | [Molecular Weight]
144.15 |
| Chemical Properties | Back Directory | [Melting point ]
214-216 | [Boiling point ]
415.0±18.0 °C(Predicted) | [density ]
1.657±0.06 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Inert atmosphere,2-8°C | [form ]
Crystalline Powder | [pka]
2.14±0.10(Predicted) | [color ]
Off-white to yellow |
| Hazard Information | Back Directory | [Synthesis]
General procedure for the synthesis of 2-aminothiazole-5-carboxylic acid from ethyl 2-aminothiazole-5-carboxylate: sodium hydroxide (0.65 g, 16.3 mmol) was added to a mixed THF/water (2:1, v/v) solution containing ethyl 2-aminothiazole-5-carboxylate (0.80 g, 4.32 mmol) and the reaction mixture was heated to reflux overnight. Upon completion of the reaction, THF was removed by distillation under reduced pressure.Subsequently, the reaction mixture was neutralized with 1 M hydrochloric acid solution. The resulting precipitate was collected by filtration, washed with ether and dried at 60 °C overnight. An off-white crystalline product was obtained in 86% yield with a melting point of 168-171 °C (literature value: 172-173 °C). The product was characterized by 1H NMR (400 MHz, DMSO-d6): δ 7.81 (s, 1H, thiazole-H), 8.99 (br s, 2H, NH2) ppm. high-resolution mass spectrometry (HRMS-ESI) analysis: m/z [M+H]+ calculated value of 145.1475 (C4H5N2O2S), measured value 145.1502. | [References]
[1] European Journal of Medicinal Chemistry, 2013, vol. 67, p. 208 - 220
[2] Recueil des Travaux Chimiques des Pays-Bas, 1944, vol. 63, p. 226
[3] Yakugaku Zasshi, 1948, vol. 68, p. 101
[4] Chem.Abstr., 1953, p. 7452
[5] Chemische Berichte, 1943, vol. 76, p. 419,428 |
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